versions.js: bump version to 2.11.2

Bump the version to 2.11.2 to prepare for release.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

Author: kv2019i

versions.json

@@ -2,6 +2,6 @@
   "SOF": {
     "MAJOR": "2",
     "MINOR": "11",
-    "MICRO": "1"
+    "MICRO": "2"
   }
 }